Dowsing for data

In this week’s podcast we hear from Tom Jefferson of the Cochrane Collaboration about the problem of publication bias – and a tool that could help researchers dowse for hidden data. Also, Brian Deer discusses his features and explains why it’s been so long from the original publication of Wakefield’s work in the Lancet to the revelations just published in the BMJ. And David Payne talks to us about the new BMJ iPad app.